ELECTROPLATING METHODS FOR FABRICATING MICROELECTRONIC INTERCONNECTS AND MICROELECTRONIC STRUCTURES FABRICATED THEREBY

摘要

Microelectronic interconnections are fabricated by forming a via in a first face of a microelectronic substrate that extends only partially through the microelectronic substrate towards a second face thereof. The via includes a sidewall and a floor. An insulating layer is formed on the sidewall. A plating electrode is formed on the second face. Metal is electroplated in the via from the floor by passing plating current between t he plating electrode and the floor through the microelectronic substrate therebetween. The substrate then is thinned at the second face to expose the metal that was electroplated. Electroplated metal through-substrate interconnections thereby may be fabricated.